http 媒体流通过 https 通过 MVMoviePlayerViewController for iphone

Question

我想通过MVMoviePlayerViewController实现通过https进行http媒体流的功能。我尝试通过 NSURLConnection 访问 https 服务器，然后通过 MVMoviePlayerViewController 打开媒体。我可以在模拟器和设备下通过此方法成功通过 UIWebView 打开图像 url，并在模拟器下通过 MVMoviePlayerViewController 打开 mp3 和 mp4 等媒体 url。奇怪的是，我无法通过设备下的 MVMoviePlayerViewController 打开媒体 url。以下是错误日志。

AVPlayerItem 类的实例 0x4b4650 已被释放，而键值观察者仍向其注册。观察信息被泄露，甚至可能被错误地附加到其他物体上。在 NSKVODallocateBreak 上设置断点以在调试器中停止。以下是当前的观测信息： （ 上下文：0x0，属性：0x208c20>上下文：0x0，属性：0xa8626b0>

以下是我的一些代码。

-(void)viewDidLoad 
{
    NSString *stringPath = [NSString stringWithFormat:@"https://xxxxx/xxx.mp4";
    NSURL *urlPath = [NSURL URLWithString:[stringPath stringByAddingPercentEscapesUsingEncoding:NSUTF8St ringEncoding]];
    NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:urlPath];
    NSURLConnection *httpConnection = [[[NSURLConnection alloc] initWithRequest:urlRequest delegate:self] autorelease];
}

- (BOOL)connection : (NSURLConnection *)connection canAuthenticateAgainstProtectionSpace : (NSURLProtectionSpace *)protectionSpace 
{
    return YES;
}

- (void)connection : (NSURLConnection *)connection didReceiveAuthenticationChallenge : (NSURLAuthenticationChallenge *)challenge 
{ 
    if ([challenge previousFailureCount] > 0) 
    {
        return;
    }

    NSString *authenticationMethod = challenge.protectionSpace.authenticationMethod;
    if ([authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTru st])
    {
        SecTrustRef secTrustRef = challenge.protectionSpace.serverTrust;
        [challenge.sender useCredential:[NSURLCredential credentialForTrust:secTrustRef forAuthenticationChallenge:challenge];
    } 
    else 
    {
        NSURLCredential *newCredential = [NSURLCredential credentialWithUser:@"adminr" password:@"admin" persistence:NSURLCredentialPersistenceForSession];
        [challenge.sender useCredential:newCredential forAuthenticationChallenge:challenge];
    }
}

- (void)connection : (NSURLConnection *)connection didReceiveResponse : (NSURLResponse *)response
{
    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
    assert([httpResponse isKindOfClass:[NSHTTPURLResponse class]]);

    NSLog(@"didReceiveResponse, status code : %d", httpResponse.statusCode);

    NSString *stringPath = [NSString stringWithFormat:@"%@", testPath];
    NSURL *urlPath = [NSURL URLWithString:[stringPath stringByAddingPercentEscapesUsingEncoding:NSUTF8St ringEncoding]];

    if ((httpResponse.statusCode / 100) == 2) 
    {
        MPMoviePlayerViewController *movieViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:urlPath];
        [self presentMoviePlayerViewControllerAnimated:movieView Controller];
    } 
}

重现步骤

1. 使用 NSURLConnection API 连接到不受信任的认证 https 服务器。

2. 我将收到didReceiveAuthenticationChallenge（NSURLConnection委托）并获取NSURLAuthenticationMethodServerTrustauthenticationMethod。我使用 SecTrustRef 和 NSURLCredential 来访问不受信任的认证 https 服务器。

3. 我将收到didReceiveAuthenticationChallenge（NSURLConnection委托）并使用NSURLCredential设置用户名和密码以访问不受信任的认证https服务器。

4. 我都收到 didReceiveResponse (NSURLConnection delegate) 并获得 http 响应 statusCode 200 OK。

5. 我尝试通过 MPMoviePlayerViewController API 打开 https 媒体 url。